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| author | David Goulet <dgoulet@torproject.org> | 2020-02-11 11:26:04 -0500 |
|---|---|---|
| committer | David Goulet <dgoulet@torproject.org> | 2020-07-08 09:10:08 -0400 |
| commit | 0de543aae636e422bc9fa339efa81e8260b77ae4 (patch) | |
| tree | 8168f28c340b36fb571b28ff00505fba00ed7781 /configure.ac | |
| parent | 668fc70a20c602bb0e74bf0e19589a17bb45b7ae (diff) | |
| download | tor-0de543aae636e422bc9fa339efa81e8260b77ae4.tar.gz tor-0de543aae636e422bc9fa339efa81e8260b77ae4.zip | |
trace: Add LTTng-UST interface support
No probes at this point. They are per subsystem and thus in later commits.
Part of #32910
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 170d8dc204..8f47ff77b4 100644 --- a/configure.ac +++ b/configure.ac @@ -258,6 +258,24 @@ AC_ARG_ENABLE(libscrypt, dnl --- Tracing Options. --- +TOR_TRACE_LIBS= + +dnl LTTng instrumentation option. +AC_ARG_ENABLE(tracing-instrumentation-lttng, + AS_HELP_STRING([--enable-tracing-instrumentation-lttng], + [build with LTTng-UST instrumentation])) +AM_CONDITIONAL([USE_TRACING_INSTRUMENTATION_LTTNG], + [test "x$enable_tracing_instrumentation_lttng" = "xyes"]) + +if test "x$enable_tracing_instrumentation_lttng" = "xyes"; then + AC_CHECK_HEADERS([lttng/tracepoint.h], [], + [AC_MSG_ERROR([LTTng instrumentation headers not found. + On Debian, apt install liblttng-ust-dev"])], []) + AC_DEFINE([USE_TRACING_INSTRUMENTATION_LTTNG], [1], [Using LTTng instrumentation]) + TOR_TRACE_LIBS="-llttng-ust -ldl" +fi + + dnl USDT instrumentation option. AC_ARG_ENABLE(tracing-instrumentation-usdt, AS_HELP_STRING([--enable-tracing-instrumentation-usdt], @@ -269,6 +287,9 @@ if test "x$enable_tracing_instrumentation_usdt" = "xyes"; then AC_CHECK_HEADERS([sys/sdt.h], [], [AC_MSG_ERROR([USDT instrumentation requires sys/sdt.h header. On Debian, apt install systemtap-sdt-dev])], []) + dnl LTTng generates USDT probes if the UST library was built with + dnl --with-sdt. There is unfortunately no way to check that so we always + dnl build the USDT probes even though LTTng instrumentation was requested. AC_DEFINE([USE_TRACING_INSTRUMENTATION_USDT], [1], [Using USDT instrumentation]) fi @@ -286,6 +307,11 @@ AM_COND_IF([USE_TRACING_INSTRUMENTATION_LOG_DEBUG], AC_DEFINE([HAVE_TRACING], [1], [Compiled with tracing support])) AM_COND_IF([USE_TRACING_INSTRUMENTATION_USDT], AC_DEFINE([HAVE_TRACING], [1], [Compiled with tracing support])) +AM_COND_IF([USE_TRACING_INSTRUMENTATION_LTTNG], + AC_DEFINE([HAVE_TRACING], [1], [Compiled with tracing support])) + +dnl Finally, define the trace libs. +AC_SUBST([TOR_TRACE_LIBS]) dnl -- End Tracing Options. -- @@ -2750,6 +2776,9 @@ PPRINT_PROP_BOOL([Tracepoints to log_debug() (--enable-tracing-instrumentation-l test "x$enable_tracing_instrumentation_usdt" = "xyes" && value=1 || value=0 PPRINT_PROP_BOOL([USDT Instrumentation (--enable-tracing-instrumentation-usdt)], $value) +test "x$enable_tracing_instrumentation_lttng" = "xyes" && value=1 || value=0 +PPRINT_PROP_BOOL([LTTng Instrumentation (--enable-tracing-instrumentation-lttng)], $value) + AS_ECHO PPRINT_SUBTITLE([Install Directories]) |